diff --git a/Cargo.lock b/Cargo.lock
index dab0057..07bb7d6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -463,7 +463,7 @@ dependencies = [
 
 [[package]]
 name = "pcsc"
-version = "2.3.0"
+version = "2.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -991,7 +991,7 @@ dependencies = [
  "nom 5.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-bigint 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "pbkdf2 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "pcsc 2.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pcsc 2.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ring 0.16.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "rsa 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "secrecy 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1080,7 +1080,7 @@ dependencies = [
 "checksum num-traits 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)" = "d4c81ffc11c212fa327657cb19dd85eb7419e163b5b076bede2bdb5c974c07e4"
 "checksum opaque-debug 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "2839e79665f131bdb5782e51f2c6c9599c133c6098982a54c794358bf432529c"
 "checksum pbkdf2 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "006c038a43a45995a9670da19e67600114740e8511d4333bf97a56e66a7542d9"
-"checksum pcsc 2.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c952b5541ee39565ab528ca468650af33aaa0cae6d4809e8e86220a926b4cad9"
+"checksum pcsc 2.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "87136e233906afe6cc044ab39f1625ad9250895af5e7ba215e0ec8381390824c"
 "checksum pcsc-sys 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e1b7bfecba2c0f1b5efb0e7caf7533ab1c295024165bcbb066231f60d33e23ea"
 "checksum pkg-config 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)" = "05da548ad6865900e60eaba7f589cc0783590a92e940c26953ff81ddbab2d677"
 "checksum ppv-lite86 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "74490b50b9fbe561ac330df47c08f3f33073d2d00c150f719147d7c54522fa1b"